Sprite Sheet Animator
TexturePacker
Free Texture Packer
ShoeBox
Sprite Sheet Packer
Sprite Monkey
Cyotek Spriter
Stitches
GameDevUtils.com
ShoeBox
TexturePacker
Free Texture Packer
rucksack
Sprite Monkey
Sprite Sheet Packer
Thingami
Sprite Sheet Animator GameDevUtils.comTexturePacker - Texture Packer is hands down the best sprite sheet generation tool on the market.
ShoeBox - Free unlimited photo storage, so you can rediscover your photos anywhere. Available for iPhone, iPad, Android, Mac and PC.
Free Texture Packer - Free Texture Packer is an open source tool that allows you to pack multiple images into one atlas for you games or sites.
Sprite Sheet Packer - Sprite Sheet Packer is online that you can easily use to pack sprite sheets, including data formats for CSS, LESS, and Phaser.
rucksack - rucksack - texture packer and resource bundler
Sprite Monkey - Small and fast but still full-featured sprite sheet editor.
